<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<!-- 轮播图 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true"> 
			<swiper-item v-for="(item, i) in goods_info.pics" :key="i">
				<image :src="item.pics_big" @click="preview(i)"></image> 
			</swiper-item>
			
		</swiper>
		
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="price">￥{{goods_info.goods_price}}</view>
			<!-- 商品信息主题区域 -->
			<view class="goods-info-boby">
				<!-- 商品的名字 -->
				<view class="goods-name">{{goods_info.goods_name}}</view>
				<!-- 收藏 -->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 运费 -->
			<view class="yf">快递：免运费 --{{cart.length}}</view>
		</view>
		
		<!-- 图文 -->
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		
		<!-- 商品导航组件区域 -->
		<view class="goods_nav">
			<uni-goods-nav :fill="true"  :options="options" 
			:buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
			
		</view>
	</view>
</template>

<script>
	
	import {  mapState,  mapMutations,  mapGetters} from 'vuex'
	
	export default {
		computed:{
			...mapState('m_cart', []),
			...mapGetters('m_cart', ['total'])
		},
		watch:{
			// total(newVal){
			// 	const findResult = this.options.find(x => x.text === '购物车')
			// 	if(findResult){
			// 		findResult.info = newVal
			// 	}
			// }
			total: {
				handler(newVal) {
					const findResult = this.options.find(x => x.text === '购物车')
						if(findResult){
							findResult.info = newVal
						}
				},
				immediate: true
			}
		},
		
		data() {
			return {
				goods_info:{},
				options: [{
							icon: 'shop',
							text: '店铺',
						
							infoBackgroundColor:'#007aff',
							infoColor:"red"
						}, {
							icon: 'cart',
							text: '购物车',
							info: 0
						}],
					    buttonGroup: [{
					      text: '加入购物车',
					      backgroundColor: '#ff0000',
					      color: '#fff'
					    },
					    {
					      text: '立即购买',
					      backgroundColor: '#ffa200',
					      color: '#fff'
					    }
					    ]
			};
		},
		onLoad(option) {
			const goods_id = option.goods_id
			this.getGoodsDetail(goods_id)
		},
		methods: {
			...mapMutations('m_cart', ['addTocart']),
			async getGoodsDetail(goods_id){
			   const {data: res} = await uni.$http.get('/api/public/v1/goods/detail', {goods_id})
				if(res.meta.status !==200) return uni.$showMsg()
				
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block," ')
				.replace(/webp/g, 'jpg')
				
				this.goods_info = res.message
			},
			//大图片预览
			preview(i){
				uni.previewImage({
					current: i,
					urls:this.goods_info.pics.map( x => x.pics_big)
				})
			},
			onClick(e){
				if(e.content.text === '购物车'){
					uni.switchTab({
						url:'/pages/cart/cart'
					})
				}
			},
			buttonClick(e){
				if(e.content.text === '加入购物车'){
					//组织商品的对象信息
					const goods = {
						goods_id: this.goods_info.goods_id,
						goods_name: this.goods_info.goods_name,
						goods_price: this.goods_info.goods_price,
						goods_count: 1,
						goods_small_logo: this.goods_info.goods_small_logo,
						goods_state: true
					}
					//调用addTocart方法
					this.addTocart(goods)
				}
			}
		}
	}
</script>

<style lang="scss">
.swiper{
	height: 750px;
	
	img{
		width: 100%;
		height: 100%;
	}
}
.goods-info-box{
	padding: 10px;
	padding-right: 0;
	
	.price{
		color: #c00000;
		font-size: 18px;
		margin: 10px 0;
		
	}
	.goods-info-boby{
		display: flex;
		justify-content: space-between;
		.goods-name{
			font-size: 13px;
			margin-right: 10px;
			
		}
		.favi{
			width: 120px;
			font-size: 12px;
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left: 1px solid #efefef;
			color: gray;
		}
	}
	.yf{
		font-size: 12px;
		color: gray;
		margin: 10px 0;
	}
}

.goods_nav{
	position: fixed;
	bottom: 0;
	left: 0;
	width: 100%;
}
.goods-detail-container{
	padding-bottom: 50px;
}
</style>
